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Thread Subject:
Linear System solving

Subject: Linear System solving

From: Betty Vag

Date: 23 Dec, 2010 15:10:40

Message: 1 of 3

I have the system of equations Ax=b.How can I solve it for A if I know the x and b matrices??
And can I use the lscov() function too??

Subject: Linear System solving

From: Rick Rosson

Date: 23 Dec, 2010 15:21:05

Message: 2 of 3

Hi Betty,

How many rows and columns in the x and b matrices?

Thanks.

Rick




"Betty Vag" <betty00arg@hotmail.com> wrote in message
news:ievopg$1l9$1@fred.mathworks.com...
> I have the system of equations Ax=b.How can I solve it for A if I know the
> x and b matrices??
> And can I use the lscov() function too??
>

Subject: Linear System solving

From: Greg Heath

Date: 23 Dec, 2010 23:17:59

Message: 3 of 3

On Dec 23, 10:10 am, "Betty Vag" <betty00...@hotmail.com> wrote:
> I have the system of equations Ax=b.How can I solve it for A if I know the  x and b matrices??
> And can I use the lscov() function too??

One solution is

A0 = b/x

It is unique if and only if there is
no A for which

A*x = 0.

Hope this helps.

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